Planet Minis

l3d4m · 05-03-2009, 11:58 AM

i have a crf 150r and have had it for about a month and the manual says the piston should be changed every 15 hours is this roght as i have looked around and it says thats to often to change it what do you think and also it says to change the oil filter every 15 hours but i changed it every three rides but anyone now about the piston really need help

mxracer41 · 05-04-2009, 08:49 PM

my friend has a '07 150R that he got brand new and still hasnt replaced piston rings or anything. depending on what oil you run, every 3 rides or so for the oil filter

Quote:

Originally Posted by l3d4m

i have a crf 150r and have had it for about a month and the manual says the piston should be changed every 15 hours is this roght as i have looked around and it says thats to often to change it what do you think and also it says to change the oil filter every 15 hours but i changed it every three rides but anyone now about the piston really need help

150rida · 05-06-2009, 05:15 PM

Replace the piston 1 time a year. They last a lot longer than 3 rides.

Campagna · 05-06-2009, 05:20 PM

once a year lmao

shspvr · 05-10-2009, 10:20 AM

Hmm "once a year" that biggest hog wash I ever herd of I have well over 70 hour and know there some other that have way more then I do something like in 200 hour on 07 the piston and rings should last way more 200 hours.

Busser90 · 05-10-2009, 10:31 AM

i kno 110s and 150r's are totally different.. but why dont you just wait till it blows up and then do a top end? why waste 150$+ on piston and whole topend when theres nothing really wrong with it..

My 110s smokin and leaks from the base gasket now and im just gonna run it till it blows then build it again..

Get the money out of hte top end before you touch it.. i think atleast..

crf fiddy · 05-11-2009, 04:45 PM

Quote:

Originally Posted by Busser90

i kno 110s and 150r's are totally different.. but why dont you just wait till it blows up and then do a top end? why waste 150$+ on piston and whole topend when theres nothing really wrong with it..

My 110s smokin and leaks from the base gasket now and im just gonna run it till it blows then build it again..

Get the money out of hte top end before you touch it.. i think atleast..

Are you some sort of dumb c*nt! let it blow up haha if it blows up it will cost alot more than $150 he is better to just replace it when he notices a drop in compression!

150rida · 05-14-2009, 08:17 PM

Quote:

Originally Posted by shspvr

Hmm "once a year" that biggest hog wash I ever herd of I have well over 70 hour and know there some other that have way more then I do something like in 200 hour on 07 the piston and rings should last way more 200 hours.

Let me clear things up. When I said once a year I was assuming he actually rides his bike unlike some people. In one year I probably have about 100 hours on my bike so thats when I replace it.

Honda53 · 05-29-2009, 03:46 PM

ive got the 07 rb, picked it up used last july, i try to ride every weekend and (assuming it had the stock piston in it when i bought it, pretty sure it does) im still on the stock top end. i plan on doing piston and rings when either theres soot on the inside of the air box boot or i just decide to go ahead and do it. i change my oil filter every time i change my oil - every 3-4 rides.

p.s. nice bike

05-03-2009, 11:58 AM	#1 (permalink)
l3d4m PM Newbie Join Date: Oct 2008 Location: london Posts: 55 My Mood:	how often do you have to change the piston on a crf 150r i have a crf 150r and have had it for about a month and the manual says the piston should be changed every 15 hours is this roght as i have looked around and it says thats to often to change it what do you think and also it says to change the oil filter every 15 hours but i changed it every three rides but anyone now about the piston really need help Attached Thumbnails

05-06-2009, 05:15 PM	#3 (permalink)
150rida 2nd Gear Member Join Date: Nov 2008 Location: Mesa, AZ Posts: 540	Re: how often do you have to change the piston on a crf 150r Replace the piston 1 time a year. They last a lot longer than 3 rides.

05-06-2009, 05:20 PM	#4 (permalink)
Campagna 3rd Gear Member Join Date: Feb 2009 Location: AZona Posts: 1,209 My Mood:	Re: how often do you have to change the piston on a crf 150r once a year lmao

05-10-2009, 10:20 AM	#5 (permalink)
shspvr PM Newbie Join Date: May 2006 Posts: 81	Re: how often do you have to change the piston on a crf 150r Hmm "once a year" that biggest hog wash I ever herd of I have well over 70 hour and know there some other that have way more then I do something like in 200 hour on 07 the piston and rings should last way more 200 hours.

05-10-2009, 10:31 AM	#6 (permalink)
Busser90 2nd Gear Member Join Date: Jun 2008 Location: Newtown, CT Posts: 366	Re: how often do you have to change the piston on a crf 150r i kno 110s and 150r's are totally different.. but why dont you just wait till it blows up and then do a top end? why waste 150$+ on piston and whole topend when theres nothing really wrong with it.. My 110s smokin and leaks from the base gasket now and im just gonna run it till it blows then build it again.. Get the money out of hte top end before you touch it.. i think atleast..

05-29-2009, 03:46 PM	#9 (permalink)
Honda53 PM Newbie Join Date: Jul 2008 Location: GA Posts: 26	Re: how often do you have to change the piston on a crf 150r ive got the 07 rb, picked it up used last july, i try to ride every weekend and (assuming it had the stock piston in it when i bought it, pretty sure it does) im still on the stock top end. i plan on doing piston and rings when either theres soot on the inside of the air box boot or i just decide to go ahead and do it. i change my oil filter every time i change my oil - every 3-4 rides. p.s. nice bike

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